期刊
OPTICS EXPRESS
卷 31, 期 2, 页码 3046-3058出版社
Optica Publishing Group
DOI: 10.1364/OE.479636
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In this paper, a self-attention module (SAM) in multi-scale improved U-net (SAM-MIU-net) is proposed for polarization scattering imaging. This module can effectively extract a new combination of multidimensional information from targets, focusing on the stable feature carried by polarization characteristics. It enhances the expression of available features and makes it easier to extract polarization features for recovering the detail of targets in polarization scattering imaging.
Polarization imaging has outstanding advantages in the field of scattering imaging, which still encounters great challenges in heavy scattering media systems even though there are helps from deep learning technology. In this paper, we propose a self-attention module (SAM) in multi-scale improved U-net (SAM-MIU-net) for the polarization scattering imaging, which can extract a new combination of multidimensional information from targets effectively. The proposed SAM-MIU-net can focus on the stable feature carried by polarization characteristics of the target, so as to enhance the expression of the available features, and make it easier to extract polarization features which help to recover the detail of targets for the polarization scattering imaging. Meanwhile, the SAM's effectiveness has been verified in a series of experiments. Based on proposed SAM-MIU-net, we have investigated the generalization abilities for the targets' structures and materials, and the imaging distances between the targets and the ground glass. Experimental results demonstrate that our proposed SAM-MIU-net can achieve high-precision reconstruction of target information under incoherent light conditions for the polarization scattering imaging.
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